Drum key



FIG. 1 is a reduced perspective view showing my new design for a drum key attached to one of a plurality of drum tuning bolts located around the perimeter of the drum. The drum and tuning bolts are shown in broken lines and are not a part of the claimed design;

FIG. 2 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view. 

The ornamental design for a drum key, as shown and described. 